A tautogram (Greek: tauto gramma, "same letter") is a text in which all words start with the same letter. The difference between a tautogram and alliteration is that tautograms are a written, visual phenomenon, whereas alliterations are a phonetic one. You are encouraged to try out a tautogram with the letter J in your log, if you'd like to try.
A simple find- just hidden by brush, is along Highway 27 and Road J, or Jackrabbit road.